In this episode we continue our discussion about unit testing and SharePoint. The Pex team at Microsoft Research have been working on a project to automatically generate a suite of unit tests based on an initial parameterized unit test, resulting in high code coverage in a far shorter time. This is challenging in the SharePoint space though because the object model is mostly sealed, so we start off understanding how Pex works and then discuss how the Moles framework, part of Pex, addresses the SharePoint challenge.